[Kst] [PATCH] updated equation fixes

[George Staikos]

This is an updated patch that fixes all of the following:

1) Operator precedence for && and ||
2) !NOPOINT now returns true (had to add a new node, hopefully the optimizer 
rips it out in most cases)
3) foo(x,,y,z) now gives an unrecovered parse error
4) foo(x>y) is now valid (was not before, I don't see why it shouldn't be)

Check the testcases if you want to cross reference.  The only testcase that 
doesn't pass is an empty equation ("", " ", "\t", etc), in that the testcases 
presently expect to pass parsing but do not.

-- 
George Staikos
KDE Developer			http://www.kde.org/
Staikos Computing Services Inc.	http://www.staikos.net/
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